Install Nginx

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The first step in creating a LEMP stack on Ubuntu 20.04 is by updating the package lists and installing Nginx.

sudo apt update && sudo apt install nginx

Type Y and ENTER if prompted.

Once installed, check to see if the Nginx service is running.

sudo service nginx status

If Nginx is running correctly, you should see a green Active state below.

● nginx.service - A high performance web server and a reverse proxy server
     Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor pres>
     Active: active (running) since Tue 2021-08-10 06:40:13 UTC; 8s ago
       Docs: man:nginx(8)
   Main PID: 2394 (nginx)
      Tasks: 2 (limit: 1072)
     Memory: 5.1M
     CGroup: /system.slice/nginx.service
             ├─2394 nginx: master process /usr/sbin/nginx -g daemon on; mast>
             └─2395 nginx: worker process

You may to type CTRL+C and hit ENTER or Q to exit the service status.

Configure Firewall

sudo ufw allow OpenSSH

Now you can access through Command Prompt using your root details.

Add new rules.

sudo ufw allow 'Nginx Full'

For both the output look like this:

Rules updated 
Rules updated (v6)

Enable ufw firewall.

sudo ufw enable

Press Y when asked to proceed.

Now check the firewall status.

sudo ufw status

Status: active

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere
Nginx Full                 ALLOW       Anywhere
OpenSSH (v6)               ALLOW       Anywhere (v6)
Nginx Full (v6)            ALLOW       Anywhere (v6)

The Nginx component of your LEMP Stack on Ubuntu 20.04 should now be ready to serve web pages.

Test Nginx

Go to your web browser and visit your domain or IP. If you don’t have a domain name yet access by your IP.

You can find this Nginx default welcome page in the document root directory /var/www/html. To edit this file in nano text editor:

sudo nano /var/www/html/index.nginx-debian.html

To save and close nano, press CTRL + X and then press Y and ENTER to save changes.

Your Nginx web server is ready to go. You can now add your own html files and images at /var/www/html directory.

You've completed this section, now you can see your website at browser.